A clown poses for a photo with a child during the pre-show for the final performance of the Ringling Bros. and Barnum & Bailey Circus, Sunday, May 21, 2017, in Uniondale, N.Y.

Bruce Bennett, Getty Images

(L-R) Ringmaster Jonathan Lee Iverson and Starseeker Paulo dos Santos perform in the closing number on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Acrobats entertain attendees on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Julie Jacobson, Associated Press file

In this May 4, 2017 file photo, a performance by the Ringling Bros. and Barnum & Bailey Circus features the Desert Goddesses camels, in Providence, R.I. The circus that has wowed crowds for 146 years with its "Greatest Show on Earth" will be taking its final bow on Sunday May 21, 2017, when the sold-out 7pm show finishes at the Nassau County Coliseum in Uniondale, New York.

Bruce Bennett, Getty Images

A kangaroo performs on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Members of the King Charles Troupe perform on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Performers enterain attendees on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Julie Jacobson, Associated Press file

In this May 4, 2017 file photo, Ringling Bros. and Barnum & Bailey Circus tiger trainer Taba Maluenda performs with a white tiger during a show in Providence, R.I. The circus that has wowed crowds for 146 years with its "Greatest Show on Earth" will be taking its final bow on Sunday, May 21, 2017, when the sold-out 7pm show finishes at the Nassau County Coliseum in Uniondale, New York.

Bruce Bennett, Getty Images

Big Cat Trainer and Presenter Alexander Lacey performs on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Performers entertain attendees on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Julie Jacobson, The Associated Press

Davis Vassallo performs during the final show of the Ringling Bros. and Barnum & Bailey Circus, Sunday, May 21, 2017, in Uniondale, N.Y.

Bruce Bennett, Getty Images

Attendees pose for photographs on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Christopher Corzo of Bound Brook, New Jersey attends the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Big Cat Trainer and Presenter Alexander Lacey performs on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Davis Vassallo and other clowns perform on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Trapeze artists perform on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Julie Jacobson, The Associated Press

A member of the audience reacts as she talks with a clown during the pre-show for the Ringling Bros. and Barnum & Bailey Circus Out of This World show before the circus' final performance, Sunday, May 21, 2017, in Uniondale, N.Y.

Bruce Bennett, Getty Images

An elephant souvenir is on sale on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Acrobats entertain attendees on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Clowns entertain attendees on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Clowns entertain attendees on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Clowns entertain attendees on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

A young fan watches the preshow on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Mixed Animals trainer Katie Azzario-Lacey performs on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

A general view of the show on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Big Cat Trainer and Presenter Alexander Lacey performs on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Performers enterain attendees on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Performers enterain attendees on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Performers entertain attendees on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Clowns perform on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Jonathan Lee Iverson - Ringmaster performs on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Clowns entertain attendees on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Bruce Bennett, Getty Images

Big Cat Trainer and Presenter Alexander Lacey performs on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run.

Members of PETA picket on the final day of the Ringling Bros Barnum and Bailey Circus on May 21, 2017 in Uniondale, New York. Known as "The Greatest Show on Earth", the circus performed its final act after a 146 year run. (Photo by Bruce Bennett/Getty Images)

UNIONDALE, New York— The Ringling Brothers and Barnum & Bailey Circus that has wowed crowds for 146 years with its “Greatest Show on Earth” is taking its final bow.

The circus’ last show of three scheduled Sunday at the Nassau County Coliseum in Uniondale, New York, is sold out.

Ringling’s parent company, Feld Entertainment, announced in January it would close the production, citing declining attendance and high operating costs.

Animal rights activists had targeted the circus, saying that forcing animals to perform and transporting them around the country amounted to abuse. And in May 2016, the company removed elephants from its shows, but ticket sales continued to decline.

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